|
Computer emulating of EM scattering of composite two dimension targets has been dealt with in this paper,and the computer emulating software has been built with Point Line Model(PLM) and MoM CGM FFT hybrid technique on visual programming platform.Using these techniques,the speed of model building and EM emulating can be efficiently increased, and the computer memory and CPU time are reduced sharply.Finally,the EM emulating on a composite column is made,and the EM emulating results are presented. 采用点线模型法建立二维复杂目标的几何模型 ,运用 Mo M- CGM- FFT相结合的混合技术 ,结合可视化编程技术 ,形成“二维复杂目标的电磁极化散射的建模与仿真”软件。这使得几何模型的建立和仿真的速度有了很大地提高 ,大大降低了内存需求和仿真时间。最后运用该软件对一个复合柱体进行了仿真 ,给出了仿真结果 In this paper, GIS establishing database method and being problem were introduced, then point and line model was put forward to manufacture GIS vector data, by the roots it ensures that spatial data has the correct topology in the course of data producing to avoid the bad result which much unsure factor work on Establishing Database in the actual work. So Database is established successfully in the end. 介绍了GIS建库方法以及存在的问题,提出运用点线模型进行GIS矢量数据采集,从根本上保证数据生产过程中空间数据之间具有正确的拓扑关系,从而消除在工作实践中各种不确定因素对建库造成的影响,达到顺利建库的目的。
|